Apparatus for tipping railway wagons



Ma 25,1926. 1,585,730 F. G. MITCHELL APPARATUS FOR ,TIPPING RAILWAY 'WAGONS Filed Dec. 8. 1922 6 Sheets-Sheet 1 Y w a May 25 1926. 5 5 3 F. G.VMITCHELL' APPARATUS FOR TIPPING RAILWAY WAGON-S Filed Dec. 8, 1922 e Sheets-Sheet 2 May 25 1926.

F. G. MITCHELL APPARATUS FOR TIPPING RAILWAY WAGONS Filed Dec. 8. 1922 6 Sheets-Sheet 5 ArramvEY.

May 25 1926.

F. G. MITCHELL APPARATUS FOR TIPPING RAILWAY WAGONS e Sheefs-Sheet 4 Filed Dec. 8; 1922 INVENTQI? iQf/YrramNEY May 25 1926. 1,585,730

F. G. MITCHELL APPARATUS FOR TIPPING RAILWAY WAGONS Filed Dec. 8.1922 s Sheets-Sheet s I 1 1 w E. j $5 May 25,1926. 1,585,730

F. G. MITCHELL APPARATUS FOR TIPRING RAILWAY WAGONS Filed Dec. 8. 1922 6 sheets-Sheet 6 4 irra PME Y Patented May 25, 1926.

FREDERICK GILBERT MITCHELL, OF LONDON, ENGLAND.

APPARATUS FOR, TIPPING BAILWAY WAGONS.

Application filed December 8, 1922, Serial No. 605,682, and in Great Britain December 20, 1921.

This invention relates to that type of apparatus for tipping railway vehicles which comprises a carrier or cradle on to or into which a railway wagon to be tipped can be run and on which it can be supported and which can afterwards be partly turned or rotated so as to tip the wagon sideways in order that its contents shall be discharged over one of its sides, and whether or not the earner with wagon be mounted to turn about a. stationary horizontal axis, or is arranged o be raised to a higher level than the ordinary permanenttrack in order that the wagon may be tipped at such higher level.

In wagon tipping apparatus of this general type, the wagon is usually held in place against rails on the carrier. during the tipping operation, by means of chains or ropes, or of bars connected to chains or ropes, which extend transversely across the open top of the wagon during the said tipping operation.

With such an arrangement it is found that when the coal or other loose material is being discharged from the wagon, some portions of it, especially large lumps, are pre vented by the chains, ropes or bars from being discharged from the wagon during the tipping operation, with the result that the wagon is not completely emptied and the retained material has to be removed by hand labour or is returned with the wagon to the place where it is to be recharged with a fresh load.

The present invention has for its object to provide in wagon tipping apparatus of the general type herein referred to, means whereby a wagon can be firmly held in place on the rails of the carrier during the tipping operation but which shall offer no obstruction to the free discharge of material from the wagon, even. if such material be in large pieces or contain large pieces.

For this purpose in wagon tipping apparatus according to the present invention, the. wagon holding means comprises a bar so connected to the carrier, or to a stationary support, and to loaded wagon holding chains, ropes or equivalent means, that durmg the tilting of the carrier and wagon, it will be caused to extend longitudinally over the open top of the wagon and bear against the end walls of the wagon at parts thereof intermediate of the side walls of the wagon, so as to leave between it and the lowermost longitudinal edge of the tilted wagon over which the contents of the wagon are discharged, a longitudinal opening, unobstructed from end to end of the wagon and of such width as to ensure that the whole contents of the wagon shall be discharged during the tilting operation. k The holding bar can be variously connected to the carrier or to a stationary support. and tothe holding chains, ropes or equivalent used therewith, to suit the particular nature of the wagon tipping apparatus to which the invention is applied. In the accompanying illustrative drawngs, Fig. 1 shows in end view and more or less diagrannnatica]ly, so much of one construction of wagon tipping apparatus of the kind referred to as is necessary to illustrate the application. thereto of wagon holding means according to the present invention. 1 is a part plan of such apparatus. .s igs. 2 and 3 show respectively in side elevation and plan, and on a larger scale than Fig. 1, the wagon holding bar used in such tipping apparatus. Fig. l shows the said bar in end elevation on a still larger scale and Figs. 5 and 6 are cross sections of the bar onihe lines VV and VIVI respectively of Fig. 2. Figs. 7 and 8 are respectively end and side elevations showing another construction of wagon tipping apparatus embodying wagon holding means according to the invent-ion. Figs. 9 and 10 are respectively side and end elevations showing a modified construction of the wagon holding means for such apparatus. Fig. 11 shows in end elevation, part of a further modification. Fig. 12 is a. detail view.

Referring to Figs. 1 to 6 inclusive, a 'is a carrier adapted to be tilted about a stationary horizontal axis at b by lifting ropes 0 secured to the end portions of the carrier at at, extending under the carrier and thence upward to hoisting and lowering drums e, which are carried by the superstructure f, and from which other ropes 6 pass to vertically movable balance weights, all as well understood. One of these ropes c with a balance weight 6 is shown in Fig. 1, another similar rope with balance weight being 10- eated behind that shown. On the carrier (2 is a platform 9 provided with rails h for the wagon i to be tipped. The platform 9 in this example is mounted to rock or tilt on the carrier about a horizontal axis as and for the purpose described in the specification another application for Letters Patent of even date herewith Serial llo. 605,683, a longitudinal lateral support, in the form cf a beam, mounted on the carrier 0: and against which the wagon i will bear sideways when the carrier is tilted by hauling up the littingropes c. The lateral support ,5 may be supported from the carrier a by end arms Z: in which it is journallcd by end irunnions so that it can turn to a small extent about a horizontal axis at m to enable it auton'iatically to adjust itseli to bear evenly against the side of the tilted wagon.

n is the longitudinal wagon holding bar mounted according to the present invention. In this example, it is jointed at its ends to the upper enos ot' a pair of links 0 the lower ends of which are jointed to the end trunnions of the lateral support or to the arms is, and 7) are loaded wagon holding chains connected to the holding bar a and extending upward over guide pulleys r at the top of the superstructure f and thence to balance weights 7) in the usual way and as shown in Fig. 1. Another similar chain with balance is located behind that shown. The arrangement is such that when the carrier and wagon i are tilted about the stationary axis at 0, the wagon bears sideways against the lateral support j and its end walls abut, at parts thereoi between the side walls of the wagon, against the holding bar n'which, under the action of the loaded chains 72, hold the wagon in position on the carrier durin the tilting thereor and of the wagon i into the discharging position shown in dotted lines in Fig. 1, the said holding bar being, as shown, at some distance from the lower edge 1 ot the wagon over which the contents of the wagon are tipped into a hopper s or other place, so that a wide longitudinal opening will be left between the said bar and edge that will admit of the free escape of the whole of the contents of the wagon.

The wagon holding bar may, as shown in Figs. 2 to 6 inclusive, be built up of two longitudinal members al n of channel shape connected together as shown and provided at each end with a pair of brackets 25 and at intermediate parts of its length with. two pairs of brackets u. The pairs of brackets t are "formed with holes to admit cf their being jointed by pins to the upper ends of the links 0 and the pairs of brackets u are similarly formed with holes to admit of their being jointed by pins to the loaded holding chains 7;. By this means the holding bar is enabled to turn in relation to the links and-chains and adjust itself to bear evenly against the end walls of the wagon. The holding bar u may, as shown, be provided with fenders or butters?) of wood or the like to bear against the end walls of the wagon;

as shown in Fig. 1 of the specification of my British Patent No. QOQAa-l, part of which hoist is shown at f in Fig. 7 of the present drawings and wherein the carrier is arranged to be hoisted to an elevated tipping position, the said arms or links connected to the wagon holding bar may be jointed to a suitable part of the upper portion of the framework or standards in or on which the carrier is raised and lowered, corre sponding to the horizontal axis about which the carrier, when raised, will be turned for tilting the wagon to discharge its contents.

Figs. 7 and 8 show an arrangement o'li this kind wherein n is the longitudinally arranged wagon holding bar, built up as an open work trussed structure, jointed at its ends to the upper ends of two radius arms or links 0", the lower ends of the said arms being provided with eyes w mounted to turn about pivot pins or bearings an arranged at the upper portion of the framework and about which the carrier, when raised, can be tilted by the lifting ropes to tilt the wagon to discharge its contents, loaded chains 19 being connected to the holding bar as and for the purpose hereinbefore described. At each side of the superstruc ture f is a stationary frame 3 for preventing the wagon to be tipped from coming into contact with the holding bar 12 before the carrier is in proper pivotal connection with the pivot pins of bearings m. The said holding bar is so arranged that it will bear longitudinally against the end walls of a tilting wagon at parts thereof between the side walls of the wagon, as and for the purpose hereinbetone described.

The said arms or links 0 may, as shown in Figs. 9 and 10, be replaced by chains 0 connected to the ends of the wagon holding bar a and to the superstructure f.

The said arms or links 0. 0 or the chains 0 may, in each case, have associated therewith or emoodied therein, s nings or yieldin parts that will permit of their length being extended to a limited extent to allow of the body of a wagon being raised by its supporting springs, after the contents of the wagon have. been discharged, and prevent the said arms, links or chains being subjected to unduev tension.

Yielding means for this purpose are shown in Figs. 9 and 10 according to which the lower end of each chain 0 is connected to a bolt 1 that extends through a plate 2 carried by a pair of plates 3 fixed to the superstructures f, and also extends through a helical spring a that bears at it upper end against the plate 2 and at its lower end is acted upon by a washer 5 and nut 6 on the said bolt 1'. Fig. .12 shows-how a similar yielding connection can be embodied in" each link 0 o'fFig. '1', or link '0 ofFigs; 7 and'.

The wagon holding chains 32 or equivalent can be variously connected to the longitudinal supporting bar n, at intermediate parts of its length, either directly, as in the examples hereinbefore described, or indirectly. Thus, in the latter case, the chains may, as shown in Fig. 11, be connected to the said bar through. arms or bars 7 extending at right angles to the bar and of such length as to bear against the upper edge of a tilted wagon, the chains 39 or equivalent being connected, to the free ends of the said arms or brackets and then led upward and around suitable guide rollers a" to balance weights 32 (Fig. 1) as in the other arrangements described.

The invention can be applied in connection with various constructions of wagon tipping apparatus of the type herein referred to, including that described in the specification of British Letters Patent No. 1.42198 granted to me.

lVhat I claim is 1. agon tipping apparatus of the kind referred to, comprising a tipping wagon carrier, counter-balanced flexible wagon sustaining means, and a longitudinal wagon sustaining beam carried by said flexible wagon sustaining means and arranged to bear against the end walls of an open top wagon at parts thereof between the side walls of the wagon.

2. agon tipping apparatus of the kind herein referred to, comprising a tipping wagon carrier, flexible Wagon sustaining means anchored at one end, counter-bah ancing weights connected to their other ends, and a longitudinal wagon sustaining beam carried by said flexible sustaining means and arranged to bear against the end walls of an open top wagon at parts thereof between the side walls of said wagon, substantially as described for the purpose set forth.

3. Vagon tipping apparatus of the kind referred to, comprising a tipping wagon carrier, flexible wagon sustaining means anchored at one end and counter-balanced at the other, yielding means associated with said flexible sustaining means, and a longitudinal wagon sustaining beam carried by said flexible sustaining means and arranged to bear against the end walls of an open top wagon at parts thereof between the side walls of the wagon.

a. Wagon tipping apparatus of the kind herein referred to, comprising a tipping wagon carrier, flexible wagon sustaining means anchored at one end and counterbalanced at the other end, and a longitudinal sustaining beam arranged between portions of the flexible sustaining means and arranged to bear against the end walls of an open top wagon at parts thereof between the side walls of said wagon.

5. Wagon tipping apparatus of the kind herein referred to, comprising a wagon tipping carrier, a lateral wagon support on said carrier, flexible wagon sustaining means connected at one end to said lateral support, counter-balancin means connected to the other ends of said flexible sustaining means, and a longitudinal wagon sustaining beam carried by said flexible sustaining means and arranged to bear against the end walls of an open top wagon at parts thereof between the side walls of the wagon.

6. Wagon tipping apparatus of the kind herein referred to, comprising a wagon tipping earrier, a lateral wagon support on said carrier, flexible wag-on sustaining means connected at one end to said lateral support, counter-balancing means connected to the other ends of said flexible sustaining means, a longitudinal wagon sustaining beam carried by said flexible sustaining means and arranged to bear against the end walls of an open top wagon at parts thereof between the side walls of the wagon, and longitudinally extensible means associated with said flexible sustaining means, adapted to permit of limited extension of said flexible sustaining means.

7. l/Vagon tipping apparatus of the kind herein referred to, comprising a tipping wagon carrier, a longitudinal sustaining beam, and means for carrying said beam, said beam being arranged to bear against the end walls of an open top wagon on said carrier at parts thereof between the side walls of said wagon.

8. \Vagon tipping apparatus of the kind herein. referred to, comprising a wagon tipping carrier mounted to turn about a horizontal axis, a superstructure above said carrier, winding drums and guide pulleys on said superstructure, hoisting ropes connected to said carrier and connected to said Winding drums, a lateral wagon support on said carrier, loaded flexible wagon sustaining means connected to said lateral support and extending over said guide pulleys and a longitudinal sustaining beam connected to said flexible sustaining means and arranged to bear against the top of a wagon at parts thereof between the side Walls of thewagon. Signed at London, England, this 27th day of November, 1922. FREDERICK GILBERT MITCHELL. 

